ORB Middleware Evolution for Networked Embedded Systems

Standards-based COTS middleware has been shown to be effective in meeting a range of functional and QoS requirements for distributed real-time and embedded (DRE) systems. Each standard makes limiting assumptions, often implicit, about the fundamental set of system capabilities and constraints typical of the domain to which the standard applies. When the characteristics of a particular class of systems violates a standard’s assumptions, it may be appropriate to modify or extend the standard and its conforming implementations to better match the actual characteristics of that class of systems while still exploiting the capabilities of the standard. In this paper, we argue that key assumptions upon which even the more advanced middleware standards are based, e.g., Real-Time CORBA (RT-CORBA), are violated by an important class of DRE systems characterized by the following properties: (1) highly connected networks of (2) numerous memory-constrained endsystems, with (3) stringent timeline...

• Type: Conference
• Year: 2003
• Where: WORDS
• Authors: Christopher D. Gill, Venkita Subramonian, Jeff Parsons, Huang-Ming Huang, Stephen Torri, Douglas Niehaus, Douglas Stuart
• Keywords: COTS Middleware, Standards-based COTS Middleware, Timeliness Requirements, WORDS 2003